What was a major reason Constantinople fell to the Ottoman Turks in 1453?

Question

A.
The city was weak after many years of constant attack.
B.
The city was weak after suffering an outbreak of plague.
C.
The city was betrayed after its ruler accepted a bribe.
D.
The city was betrayed after the army changed sides.

Answer 1

A major reason Constantinople fell to the Ottoman Turks in 1453 was:

A. The city was weak after many years of constant attack.

By the time of the siege in 1453, Constantinople had been weakened significantly due to continual assaults and had dwindling resources and manpower, which contributed to its eventual fall.